Effective Gold Precipitant for Aqua Regia Refining

Recover dissolved gold quickly and reliably with GTE Professional Refining Grade Gold Precipitant.

This high-purity Sodium Metabisulfite (SMB) is used during the final stage of the aqua regia refining process to convert dissolved gold chloride back into solid recoverable gold powder.

GTE packages this refining chemical specifically for precious metal recovery, ensuring refiners receive consistent precipitation performance and dependable refining results.

When added to properly prepared aqua regia solutions, SMB causes dissolved gold to precipitate out of solution as fine metallic gold powder which can then be filtered, washed, and melted.

Whether you are refining scrap jewelry, recovering gold from electronics, or processing precious metals in a laboratory setting, GTE Gold Precipitant delivers reliable performance every time.

Why Refiners Choose GTE

Professional Refining Grade
High-purity sodium metabisulfite designed for precious metal recovery.

Consistent Gold Precipitation
Reliable conversion of dissolved gold back into solid metal.

Designed for Gold Refining
Packaged specifically for aqua regia refining applications.

Resealable Moisture-Resistant Packaging
Protects the chemical and keeps it dry during storage.

Trusted by Refiners Nationwide
Used by hobby refiners, jewelers, and precious metal recovery specialists.

Available Sizes

8 oz
Ideal for small refining batches and beginner refiners.

16 oz (1 lb)
Best for larger refining batches and frequent refining work.

Common Uses

• Precipitating dissolved gold from aqua regia solutions
• Precious metal recovery and refining
• Scrap gold refining
• Jewelry recycling and refining
• Laboratory precious metal processing

Typical Use

Dissolve a small amount of sodium metabisulfite in water and slowly add it to a filtered aqua regia solution containing dissolved gold.

As the SMB reacts, the dissolved gold converts into solid gold powder, which settles out of solution and can be recovered by filtration.

Product Specifications

Chemical Name
Sodium Metabisulfite

Chemical Formula
Na₂S₂O₅

Purity
99%

Sizes Available
8 oz
16 oz (1 lb)

Packaging
Resealable mylar refining-grade pouch

Safety Notice

Always wear proper protective equipment and work in a well-ventilated area when performing precious metal refining processes.

Overview of GTE Gold Precipitant

GTE Gold Precipitant, composed primarily of sodium metabisulfite, is an ideal chemical agent for the gold refining process, especially following aqua regia dissolution. This product is designed to efficiently precipitate usable gold from solution by selectively reducing gold ions, enabling straightforward recovery. Available in convenient 8 oz and 16 oz bottles, it caters to both small-scale and professional refiners. Its reliable performance helps maximize gold yield with minimal impurities, supporting consistent refining results.

How Sodium Metabisulfite Functions in Gold Refining

Sodium metabisulfite acts as a reducing agent that facilitates the precipitation of gold from aqua regia solution. When added, it effectively converts dissolved gold complexes into solid gold particles, which can be filtered and collected. This reaction is critical to isolate gold after the corrosive aqua regia mixture dissolves impurities and other metals. Its high purity and predictable behavior make GTE Gold Precipitant a trusted choice for hobbyists and professionals alike, ensuring efficient recovery and handling.

Choosing the Right Size and Handling Tips

The GTE Gold Precipitant is offered in 8 oz and 16 oz sizes, providing flexibility depending on the scale of your refining project. The smaller volume suits experimental or hobbyist work, while the larger size supports regular or industrial use. Proper handling includes storing the powder in a cool, dry place and wearing protective gear during use to avoid inhalation or skin contact. Following recommended dosing and safety guidelines enhances the overall refining experience and chemical effectiveness.